Microscope



Aug. 21', 1934.

W. BAUERSFELD IIGROSGOPE x-md Ilaroh 24. 1934 2 Sheets-Sheet 1 Patented Aug. 21, 1934 1,911,061. OFFICE MICROSCOPE Walther Bauersteld, Jena, Germany asslznor t tho Im o! Gaul Zelu. Jpna, Germany Appllcatlon In si cum.

always ready at disposal, a rotationoi' the ocular piece placing the desired eye-piece or the blnocular tube attachment into the path 01' the lmaging rays.

A revolvihg ocular piece is especially convenient when a microscope is concerned which has an inclined viewing direction und is provided with a reflecting system deflecting the imaglng rays in the direction o! the axis 01' the eye-piece in position tor use. According to the invention, the instrument is so constructed that the axis 017 rotatlon 01' the ocular piece colncldes wlth the optical axis of the mlcroscope objective. When the mlcroscope is equipped wlth an ocular piece having a plurality of objectives to be used alternat;ely, the axis cf rotation of the ocular plece ls to correspond to the direction 01 the axls 01' the objec tive in posltin for use. The ocular plece is in this case a body of revolutlon whose axis coincides wlth that 015 the microscope and which is there- Iore cf an especlally simple constructlon. 'I'he reflectlng system Ior deflecting the pencil 01 imaglng rays 1nto the vlewins dlrection is canveniently provlded in the stationary part o! the (ocular plece.

In the accompanylng drawings, whlch repre- .s"ent a constructional example o! thp lnventlon, Figure 1 shows the exaxnple in part-sectlonal elevation, and Flgures 2 und 3 illustrate slngle parts 012 the exan'xple in top views as seen Irom thdlrectlon lndlcated by the arrows 2 and 3 in Figure 1. The mlcroscope stand, which may have any sultable kann, ls represented only by ths pper part 01 1ts pillar bracket a. A revolvlng noseplece b tot the mlcroacopeobjectlve c is attached in the known manner to the lower part 01 the head a 01 the pillar bracket a. A revolving ocu- 50 lar plece tot three eye-plece3 ls attached to the upper end 01 the head a by means o! a ring d.

' 'I'he sald ocular plece consists 01 a statlonary part e and a part a rotatable about a holt f flxed to the sald stationary part e. 'I'he axis cf the holt; f 5 colncides w1th the optlcal axls 015 the mlcroscppe objectlve c in posltlon f0l' use. 'I'he statlonary part e has an incllned bore e Infront ot the lower end 01 thls bore e is provided a reflecting pflsm h whose reflecting surtaces are so incllned that the imag n rays emanating 1'rom the objec'- l\hrch 24,193. Sah! N0. 717.227 Germany Marc]! 27, 19 83 (01. a s-a9 tive c are deflected twlce and directed into the bare e in thadirectionot the axis of same. 'I'he rotatable part a otthe ocular piece (Flgure 3) has three bores a, y and u. Euch 015 the bores a and als adapted to receive an eye-piece tube i. Screws k hold a blnocular tube attachment (Figure 2) in the bore g. The binocular tube attachment consists in the known manner of a prism houslng l to which there are attached an eyepiece taube m, which may not be adjusted, and an adjustable eye-piece'tube m.

The eye-pieces requlred for observing by means 01 the mlcroscope are lnserted into the ocular tubes i and m m. The objectlve and the eye pliace are chosen according to the desired. mag niflcation and glven the correct positions for use by means 01 the revolvlng pleces b and g. The axls o! the eye-piece taube i in position for use lies in the direction 01 the bore e When observations are to be efiected with both eyes, the ocular plece g is rotated until nhe binocular tube attachment has assumed its position for use in front o! the bore e 'I he mlcroscope according to the lnvention is used in quite the same manner as any other mlcroscope, the only difference being that the eye-pieces need not be removed from the microscope when they are to be changed.

I claixn:

1. A microscope comprlsing a stand. at least one microscope objective, a revolving ocular piece comsisting 015 a part rigidly connected to the stand and a part rotatable on the said stationary part about an axis, at least two eye-piece tubes mounted in the sa1d rotatable part, and a reflecting syste ni adapted to deflect the pencil of imaging rays emanating trom the sald objective into 'the direction o! the eye-piece taube in position Ior use, the axis of rotatlon o! the said rqtatable part coincidin: wlth the axis o1 the said objectlve.

2. A microscope accordlng to claim 1, the sald refleptlng systam belng' dlsposed in that part of the sald ocular plece whlch 1s rigidly connected to the said stand.

3. A mlcroscopd comprising a stand an objectlve changln: device. a1; least two mlcroscope ob- ;lectlves dlsposed in the s'aid objective changing devlee, a revolvink ocular plece consisting 015 a. part rigidly connectedto the stand and a part totatable .on the sald stationary part about an ax'ls, at least two eye-plece tubes mounted in the sald rotatable part, and a reflecting system adapted to deflect the pencll o! lmaglng rays en'xanat- Ing from the objectlve in position for use into the dlrection of the eye-plece tube in positlon tor use, the axis of r otatlon 015 the said r otatable part colnciding wlth the axls of the objectlve in posltion 1'or use.

WALTHER BAUERSFELD. 

